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<p>In order to create high strength-to-weight ratio, like transportable bridge girders, and railroad transportation systems, aluminium and its alloys are now frequently used. These alloys are stronger and ideal for use in structural applications thanks to the addition of magnesium, which also boosts the strengthening ability and increases the mechanical properties of aluminium. In this work, pulsed current metal arc welding was used to butt weld alloy 5086 Al–Mg (60×10&#xa0;mm). The principal effects of the P-GMAW process on the weld metal’s dilution, microstructure, and porosity content may also have an effect on its tensile and hardness properties. At an average current of 200 and 250&#xa0;A, the weld metal’s average hardness is between 70 and 75. The overall values of the ultimate tensile strength, yield strength and the elongation are varied in the range of 210&#xa0;MPa, 88&#xa0;MPa and 25.25%, respectively.</p>

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Outcome of pulse current parameters on the mechanical and metallurgical characteristics of P-GMA welded AA5086 alloy

  • 期刊论文

  • 发表日期：

    2025年2月13日

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  • G Rajamurugan,
  • V K Goyal,
  • P K Ghosh

摘要

In order to create high strength-to-weight ratio, like transportable bridge girders, and railroad transportation systems, aluminium and its alloys are now frequently used. These alloys are stronger and ideal for use in structural applications thanks to the addition of magnesium, which also boosts the strengthening ability and increases the mechanical properties of aluminium. In this work, pulsed current metal arc welding was used to butt weld alloy 5086 Al–Mg (60×10 mm). The principal effects of the P-GMAW process on the weld metal’s dilution, microstructure, and porosity content may also have an effect on its tensile and hardness properties. At an average current of 200 and 250 A, the weld metal’s average hardness is between 70 and 75. The overall values of the ultimate tensile strength, yield strength and the elongation are varied in the range of 210 MPa, 88 MPa and 25.25%, respectively.